LT5527EUF#PBF

LT5527 is a active mixer. It is optimized for high linearity, wide dynamic range downconverter applications. The IC includes a high speed differential LO buffer amplifier driving a double-balanced mixer. Broadband, integrated transformers on the RF and LO inputs provide single-ended 50 ohm interfaces. The differential IF output allows convenient interfacing to differential IF filters and amplifiers, or is easily matched to drive 50 ohm single-ended, with or without an external transformer. The RF input is internally matched to 50 ohm from 1.7GHz to 3GHz, and the LO input is internally matched to 50 ohm from 1.2GHz to 5GHz. The frequency range of both ports is easily extended with simple external matching. The IF output is partially matched and usable for IF frequencies upto 600MHz. It is used in applications such as Cellular, WCDMA, TD-SCDMA and UMTS, infrastructure, GSM900/GSM1800/GSM1900 infrastructure, 900MHz/2.4GHz/3.5GHz WLAN, MMDS, WiMAX, high linearity down mixer applications.

• Wide RF frequency range from 400MHz to 3.7GHz
• Integrated LO buffer: low LO drive level
• High LO-RF and LO-IF isolation
• Very few external components, enable function
• Input 3rd order intercept is 24.5dBm typ at (RF = 900MHz, IF = 140MHz, TA = 25°C)
• Conversion gain is 2.5dB typ at (RF = 450MHz, IF = 140MHz, high side LO, TA = 25°C)
• Single-sideband noise figure is 11.6dB typ at (RF = 900MHz, IF = 140MHz, TA = 25°C)
• Supply voltage range from 4.5V to 5.25V
• Supply current is 23.2mA typ at (VCC = 5V, EN = high, TA = 25°C)
• Operating temperature range from -40°C to 85°C, package style is 16-lead plastic QFN

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